Angelbird sent me out 2 of these CF Express Type B 'SE' cards after I suggested to them that I could review their cards. I've used the AV PRO 1TB card for two years previous to this and recently I had an error on the card and Angelbird replaced the card. Overall, since using these cards now for almost 4 months, they've worked out great. I've had super write speeds which is more than enough for my R5C camera, even in 8K RAW format. Considering they cost just €220 including VAT, they're incredibly good value and therefore, I would recommend them. Also, make sure to get the proper Angelbird CF Express B card reader as well as it's pretty awesome. If you've any questions, leave them in the comments below.